Safety roller-tool wrench



April 8, 1924; 1,489,953

G. R. LINVILLE SAFETY ROLLER TOOL WRENCH Fild Nov. 23.1922 sSheets-Sheet 1 gnmenhn 6.117, Lina 1716 April 8 1924,

1,489,953 G. R. LINV'ILLE SAFETY ROLLER TCOL WRENCH Filed Nov. 25. 1922s Sheets-Sheet 2 April 8, 1924. 1,489,953

G. RYLINYILLE SAFETY ROLLER TOOL WRENCH 1 Filed Nov. 25. 1922 '3Shets-Sheet 5 gnvwn (o': F. Lamzlle,

Patented Apr. i924,

GEORGE RILEY LINVILLE, OF FILLMORE, CALIFORNIA, ASSIGNOR F ONE-THIRD TOWALTER ERLING- COAN AND ONE-THIRD TO JOB VERNON KIMBER, BOTH OF FILL-MORE, CALIFORNIA.

SAFETY ROLLER-TOOL WRENCH.

Application filed November 23, 1922. Serial No. 602,868.

To all whom it may concern:

Be it known that I, Gnonen RILEY-LIN- VILLE, a citizen of the UnitedStates, residing at Fillmore, in the county of Ventura and State ofCalifornia, have invented certain new and useful Improvements in SafetyRoller-Tool Wrenches; and I do hereby declare the following to be afull, clear, and

exact description of the invention, such as will enable others skilledin the art to which itappertains to make and use the same.

This invention relates to a wrench designed particularly for use in welldrilling by the cable tool method.

The invention has for its primary object the provision of a wrench ofthe nature stated which in service is safe,- easy of manipulation andspeedy in operation and which has a two-point suspension which preventsthe wrench from tipping when the operator applies force'and whichmaintains alinement during the joining of two threaded tools. Thetwo-point suspension also enables a maximum leverage to be brought intoplay when the tool is in opera tion.

lVhen in operation, the wrench is suspended from a traveling crane inthe derrick house and is designed for holding drill bits, underreamersand analogous'tools in vertical position during the operation ofattaching or detaching such tools from the box of the drill stem.

Other objects and advantages will be apparent and suggest themselves as;the nature of the invention is understood.

While the drawings illustrate an embodiment of the invention it is to beunderstood that in adapting the same to meet different conditions andrequirements, various changes in the form, proportion and minor detailsof construction may be resorted to without departing from the nature ofthe invention.

Referring to the accompanying drawings forming a part of theapplication,

Figure 1 is a perspective view of a wrench embodying the invention,

Figure 2 is a front view thereof,

Figure 3 is a transverse section on the line 3-3 of Figure 1,

Figure 4 is a top plan view of the swivel wrench jaw,

Figure 5 is a section on the line 5--5 of Figure 4, V V

Figure 6 is a top plan and a front view, respectively of the retainingplate,

Figure 7 is a top plan View of a supplemental jaw adapted tocbedetachably connected to the main jaw of the wrench, the dotted linesindieating-diiferent sizes whereby the wrench may be adapted fordifferent sizes of work,

Figure 8 is a top plan view of the jaw carrier, and V Figure 9 is asectional detail of portions of the jaw carrier and gate, showing thelatch for securing the latter.-

Corresponding and like parts are referred to in the followingdescription and designated in the several views of the drawings by likereference characters.

The main fpame of the wrench comprises a yoke l and a handle 2. The armsof the yoke 1 are provided with eyes 3 to which the lower ends ofsuspending means 4 are attached, said suspending means preferablyconsisting of short lengths of chain which are brought together at theirupper ends and attached to a hook 5, or analogous device, which may bemade fast to a crane (not shown) or other-supporting means. It will thusbe understood that the wrench has a tw0-point suspension whereby thesame is prevented from tipping sideways and affords better manipulationof the tool, particularly when coupling parts are required to beheld inalinement.

A jaw carrier 6 is mounted in the yoke l by means of trunnion bolts 7which are journaled in the outer ends of the arms comprising the yokeand are threaded in the carrier 6. The jaw carrier 6 is of circular formand a portion is cut away to provide an opening which is adapted to beclosed by means of a gate 8. The gate 8 is pivoted at one end asindicated at 9 and its free end is half jointed to the opposite end ofthe carrier 6 as indicated most clearly in Figure 9. A spring actuatedlatch 10, at the swinging end of the gate 8, is adapted to enteran'opening in the end of the carrier 6 and secure the gate when closedagainst any possible accidental opening. The jaw carrier 6, includingthe gate 8, is of annular form and is provided upon its top side with aplurality of roller (ti-d bearings 11 set in openings formed in thecarrier and mounted upon pins.

The jaw 12 is of circular outline and fits snugly within the annularcarrier 6 and is formed with an outer flange 13 which underlaps thecarrier 6, whereby to limit the upward movement of the jaw withreference thereto. A radial opening 14L extends through an edge of thejaw and is adapted to receive the tool or other part to be held androtated by means of the wrench. The mouth or entrance of the opening 14flares to facilitate the application of the wrench to the tool whenplacing the same in position. Handles 15 extend downwardly and outwardlyfrom the jaw and provide means for rotating the jaw and the tool carriedthereby. A retainer 16 is secured to the top side of the jaw 12 1ndoverlaps the jaw carrier 6 and rests upon the roller bearings 11. Theretainer 16 consists of a plate which is bolted or otherwise secured tothe jaw 12 and which is formed in an edge with an opening 17 to registerwith the opening 1 1 of the jaw. It will thus be understood that the jaw12 is free to rotate within the carrier 6 and the opening 14: thereof isclosed by the carrier 6. hen the jaw 12 is adjusted to a position tobring the opening 14: thereof in register with the opening in a side ofthe jaw carrier 6, the tool may be placed in position or removed fromthe wrench as required. lVhen the tool is placed in position within theopening 14 of the jaw 12, it is held from accidental displacement byclosing the gate 8 and fastening the same by means of the latch 10, thetool being rotated by grasping the handle 15 and turning the jaw 12 inthe carrier 6, the friction between the jaw and carrier being reduced tothe smallest amount possible by means of the roller bearings 11.

The capacity of the wrench is increased by providing supplemental jaws18 which are similar in formation to the retainer 16. These supplementaljaws 18 have openings 19 of different sizes and by selecting asupplemental jaw of required size and securing the same to the main jaw12, the wrench may be readily adapted for a tool of special size. Forconvenience the selected supplemental jaw is placed upon the retainer 16and secured therewith to the main jaw 12 by the same bolts provided forattaching the retainer to the main jaw.

What is claimed is:

A wrench of the character specified comprising a handle having a yoke atone end, a suspending means secured to each of the arms of said yoke, ajaw carrier journaled to the arms of the yoke and having a portion cutaway to provide an ingress and egress opening, a gate for closing saidopening pivoted at one end to the carrier and half jointed at its freeend to the opposite end of the carrier, a slidable spring pressed latchcarried by said gate at its free end and engaging in an opening in thecarrier and preventing casnal opening of the gate, roller bearingsjournaled in said carrier and gate and projecting about the uppersurfaces thereof, a jaw rotatably mounted in the carrier and having aflange to engage the under side thereof, a retainer secured to the topside of the jaw and overlapping the carriers and resting on the rollerbearings and acting jointly with the flange of the jaw to hold thelatter in place, and a supplemental jaw having detachable connectionswith the main jaw whereby to increase the capacity of the wrench.

In testimony whereof I afiiX my signature in presence of two witnesses.

GEORGE R. LINVILLE. lVitnesses:

JOHN TIMME, BRUCE H. LooKARn.

